In recent years, the government, of African Countries has assumed major responsibilities for economic reforms and growth. In attempting to describe their economies, economists (policymakers) in many African Countries have applied certain models that are by now widely known: Linear programming...

Purpose of this paper is to analyze the convergence of the consumption structure, both at the empirical and the theoretical levels. The basic empirical result is that the consumption structure converges quite quickly. We feel that the income effect is not sufficient to explain this high speed....

Contemporary economics contains mainly two approaches for an explanation of fluctuations of economic activity indicators. The first approach expresses fluctuations as consequences of random external shocks. The second approach expresses fluctuations as a deterministic dynamical process producing...

Based on Bergara and Licandro´s Model (2001), this paper studies the relationship between the requirements of prudential regulations for risks management and its effects on the loans portfolio. The financial regulation (Basle´s Accords, I and II) becomes sensible to risks (using Value at...

In this paper I describe group theoretic methods that can be used for analyzing the boundary problems, which arise when the Hamiltonian method is applied to solve the relaxed problem for the multidimensional screening problem. This technique can provide some useful insights into the structure of...

Financial Market is a Complex System.Quantitative analysis of Complex system is difficult. There is little mensurable method in this field. But we often need describe the running pattern in complex system. How can we describe and find the running pattern (structure) change in complex system. The...

In order to prepare for the negotiations on the EU Energy and Climate Package, the Federal Planning Bureau was asked by the Belgian federal and regional authorities to conduct a study on the impact of the January 2008 European Commission's proposal. In the course of this study, various scenarios...

This paper argues that a model in which consumers have accurate knowledge of their own idiosyncratic circumstances but `sticky expectations' about the macroeconomy can reconcile conflicting evidence about consumption dynamics from micro and macro data. Sluggish aggregate spending growth, which...

Computational laboratories (CLs) are computational frameworks that facilitate the study of complex system behaviors by means of controlled and replicable experiments. CLs permit students to engage in open-ended creative research, to explore interesting questions of their own devising for which...

Smith and Sørenson (2002) depart from Bikhchandani, Hirshleifer and Welsh’s (1999) herding framework in three ways; non-discrete signals, noise and multiple rational agent types. They refer to the standard model of a single type with no noise as a “herding†model, and differentiate...